/Engine/Source/Runtime/Engine/Classes/GameFramework/WorldSettings.h
struct FHierarchicalSimplification
FMeshApproximat...
ApproximateSettings
Approximate settings, used if SimplificationMethod is Approximate
uint8:  1
bAllowSpecificExclusion
uint8: 1
bOnlyGenerateClustersForVolumes
Only generate clusters for HLOD volumes
uint8: 1
bReusePreviousLevelClusters
Will reuse the clusters generated for the previous (lower) HLOD level
uint8: 1
bUseOverrideDrawDistance
float
DesiredBoundRadius
Desired Bounding Radius for clustering - this is not guaranteed but used to calculate filling factor for auto clustering
float
DesiredFillingPercentage
Desired Filling Percentage for clustering - this is not guaranteed but used to calculate filling factor for auto clustering
FMeshMergingSet...
MergeSetting
Merge settings, used if SimplificationMethod is Merge
int32
MinNumberOfActorsToBuild
Min number of actors to build LODActor
float
OverrideDrawDistance
FMeshProxySetti...
ProxySetting
Simplification settings, used if SimplificationMethod is Simplify
EHierarchicalSi...
SimplificationMethod
float
TransitionScreenSize
The screen radius an mesh object should reach before swapping to the LOD actor, once one of parent displays, it won't draw any of children.